HSC Science (General) १२ वीं कक्षा - Maharashtra State Board Question Bank Solutions

Attempt the following:

Explain the vulcanisation of rubber. Which vulcanizing agents are used for the following synthetic rubber?
a. Neoprene
b. Buna-N

Write the reaction involved in the formation of:

Bakelite

Attempt the following:

What is meant by LDP and HDP? Mention the basic difference between the same with suitable examples.

How will you illustrate the use of a safer solvent and auxiliaries?

Answer the following

Define catalyst.

Write preparation, properties, and uses of Teflon.

Explain any three principles of green chemistry.

Answer the following:

Explain the atom economy with a suitable example.

Answer the following

How will you illustrate the principle, minimization of steps?

Answer the following.

Is synthetic rubber better than natural rubber? If so, in what respect?

Answer the following.

Write main specialities of Buna-S, Neoprene rubber?

Write the structure of isoprene and the polymer obtained from it.

How are amines classified?

Answer the following

Give two examples of catalysts.

The charge on metal ion in [Fe(CN)₆]⁴⁻ is _________

Hybridization of cobalt in [Co(NH₃)₆]³⁺ complex ion is _____________

The geometry of [CoF₆]^3– complex ion is _______.

Draw structure of Ethylenediaminetetraacetate ion.

Write coordination number of Fe³⁺ in [Fe(C₂O₄)₃]³⁻ complex ion.

Write chemical composition of carnalite.